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-rw-r--r--plat/mediatek/mt8195/drivers/spmc/mtspmc.c166
-rw-r--r--plat/mediatek/mt8195/drivers/spmc/mtspmc.h31
-rw-r--r--plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h183
3 files changed, 380 insertions, 0 deletions
diff --git a/plat/mediatek/mt8195/drivers/spmc/mtspmc.c b/plat/mediatek/mt8195/drivers/spmc/mtspmc.c
new file mode 100644
index 0000000..9b332a0
--- /dev/null
+++ b/plat/mediatek/mt8195/drivers/spmc/mtspmc.c
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+
+#include <mcucfg.h>
+#include <mtspmc.h>
+#include <mtspmc_private.h>
+
+
+void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu)
+{
+ mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu));
+}
+
+void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu)
+{
+ mmio_clrbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu));
+}
+
+void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr)
+{
+ assert(cluster == 0U);
+
+ mmio_write_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR), bootaddr);
+}
+
+uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu)
+{
+ assert(cluster == 0U);
+
+ return (uintptr_t)mmio_read_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR));
+}
+
+void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64)
+{
+ uint32_t reg;
+
+ assert(cluster == 0U);
+
+ reg = per_cluster(cluster, MCUCFG_INITARCH);
+
+ if (arm64) {
+ mmio_setbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu));
+ } else {
+ mmio_clrbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu));
+ }
+}
+
+/**
+ * Return subsystem's power state.
+ *
+ * @mask: mask to MCUCFG_CPC_SPMC_PWR_STATUS to query the power state
+ * of one subsystem.
+ * RETURNS:
+ * 0 (the subsys was powered off)
+ * 1 (the subsys was powered on)
+ */
+bool spm_get_powerstate(uint32_t mask)
+{
+ return (mmio_read_32(MCUCFG_CPC_SPMC_PWR_STATUS) & mask) != 0U;
+}
+
+bool spm_get_cluster_powerstate(unsigned int cluster)
+{
+ assert(cluster == 0U);
+
+ return spm_get_powerstate(BIT(14));
+}
+
+bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu)
+{
+ uint32_t mask = BIT(cpu);
+
+ assert(cluster == 0U);
+
+ return spm_get_powerstate(mask);
+}
+
+int spmc_init(void)
+{
+ INFO("SPM: enable CPC mode\n");
+
+ mmio_write_32(SPM_POWERON_CONFIG_EN, PROJECT_CODE | BCLK_CG_EN);
+
+ mmio_setbits_32(per_cpu(0, 1, SPM_CPU_PWR), PWR_RST_B);
+ mmio_setbits_32(per_cpu(0, 2, SPM_CPU_PWR), PWR_RST_B);
+ mmio_setbits_32(per_cpu(0, 3, SPM_CPU_PWR), PWR_RST_B);
+ mmio_setbits_32(per_cpu(0, 4, SPM_CPU_PWR), PWR_RST_B);
+ mmio_setbits_32(per_cpu(0, 5, SPM_CPU_PWR), PWR_RST_B);
+ mmio_setbits_32(per_cpu(0, 6, SPM_CPU_PWR), PWR_RST_B);
+ mmio_setbits_32(per_cpu(0, 7, SPM_CPU_PWR), PWR_RST_B);
+
+ mmio_clrbits_32(SPM_MCUSYS_PWR_CON, RESETPWRON_CONFIG);
+ mmio_clrbits_32(SPM_MP0_CPUTOP_PWR_CON, RESETPWRON_CONFIG);
+ mmio_clrbits_32(per_cpu(0, 0, SPM_CPU_PWR), RESETPWRON_CONFIG);
+
+ mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, CPC_CTRL_ENABLE);
+ mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, SSPM_CORE_PWR_ON_EN);
+
+ return 0;
+}
+
+/**
+ * Power on a core with specified cluster and core index
+ *
+ * @cluster: the cluster ID of the CPU which to be powered on
+ * @cpu: the CPU ID of the CPU which to be powered on
+ */
+void spm_poweron_cpu(unsigned int cluster, unsigned int cpu)
+{
+ uintptr_t cpu_pwr_con = per_cpu(cluster, cpu, SPM_CPU_PWR);
+
+ /* set to 0 after BIG VPROC bulk on & before B-core power on seq. */
+ if (cpu >= 4U) {
+ mmio_write_32(DREQ20_BIG_VPROC_ISO, 0U);
+ }
+
+ mmio_setbits_32(cpu_pwr_con, PWR_ON);
+
+ while (!spm_get_cpu_powerstate(cluster, cpu)) {
+ mmio_clrbits_32(cpu_pwr_con, PWR_ON);
+ mmio_setbits_32(cpu_pwr_con, PWR_ON);
+ }
+}
+
+/**
+ * Power off a core with specified cluster and core index
+ *
+ * @cluster: the cluster ID of the CPU which to be powered off
+ * @cpu: the CPU ID of the CPU which to be powered off
+ */
+void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu)
+{
+ /* Set mp0_spmc_pwr_on_cpuX = 0 */
+ mmio_clrbits_32(per_cpu(cluster, cpu, SPM_CPU_PWR), PWR_ON);
+}
+
+/**
+ * Power off a cluster with specified index
+ *
+ * @cluster: the cluster index which to be powered off
+ */
+void spm_poweroff_cluster(unsigned int cluster)
+{
+ /* No need to power on/off cluster on single cluster platform */
+ assert(false);
+}
+
+/**
+ * Power on a cluster with specified index
+ *
+ * @cluster: the cluster index which to be powered on
+ */
+void spm_poweron_cluster(unsigned int cluster)
+{
+ /* No need to power on/off cluster on single cluster platform */
+ assert(false);
+}
diff --git a/plat/mediatek/mt8195/drivers/spmc/mtspmc.h b/plat/mediatek/mt8195/drivers/spmc/mtspmc.h
new file mode 100644
index 0000000..34e93d0
--- /dev/null
+++ b/plat/mediatek/mt8195/drivers/spmc/mtspmc.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MTSPMC_H
+#define MTSPMC_H
+
+#include <stdint.h>
+
+int spmc_init(void);
+
+void spm_poweron_cpu(unsigned int cluster, unsigned int cpu);
+void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu);
+
+void spm_poweroff_cluster(unsigned int cluster);
+void spm_poweron_cluster(unsigned int cluster);
+
+bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu);
+bool spm_get_cluster_powerstate(unsigned int cluster);
+bool spm_get_powerstate(uint32_t mask);
+
+void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64);
+void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr);
+uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu);
+
+void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu);
+void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu);
+
+#endif /* MTSPMC_H */
diff --git a/plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h b/plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h
new file mode 100644
index 0000000..bf4092e
--- /dev/null
+++ b/plat/mediatek/mt8195/drivers/spmc/mtspmc_private.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MTSPMC_PRIVATE_H
+#define MTSPMC_PRIVATE_H
+
+#include <lib/utils_def.h>
+#include <platform_def.h>
+
+unsigned long read_cpuectlr(void);
+void write_cpuectlr(unsigned long cpuectlr);
+
+unsigned long read_cpupwrctlr_el1(void);
+void write_cpupwrctlr_el1(unsigned long cpuectlr);
+
+/*
+ * per_cpu/cluster helper
+ */
+struct per_cpu_reg {
+ unsigned int cluster_addr;
+ unsigned int cpu_stride;
+};
+
+#define per_cpu(cluster, cpu, reg) \
+ (reg[cluster].cluster_addr + (cpu << reg[cluster].cpu_stride))
+
+#define per_cluster(cluster, reg) (reg[cluster].cluster_addr)
+
+#define SPM_REG(ofs) (uint32_t)(SPM_BASE + (ofs))
+#define MCUCFG_REG(ofs) (uint32_t)(MCUCFG_BASE + (ofs))
+#define INFRACFG_AO_REG(ofs) (uint32_t)(INFRACFG_AO_BASE + (ofs))
+
+/* === SPMC related registers */
+#define SPM_POWERON_CONFIG_EN SPM_REG(0x000)
+/* bit-fields of SPM_POWERON_CONFIG_EN */
+#define PROJECT_CODE (U(0xb16) << 16)
+#define BCLK_CG_EN BIT(0)
+
+#define SPM_PWR_STATUS SPM_REG(0x16c)
+#define SPM_PWR_STATUS_2ND SPM_REG(0x170)
+#define SPM_CPU_PWR_STATUS SPM_REG(0x174)
+
+/* bit-fields of SPM_PWR_STATUS */
+#define MD BIT(0)
+#define CONN BIT(1)
+#define DDRPHY BIT(2)
+#define DISP BIT(3)
+#define MFG BIT(4)
+#define ISP BIT(5)
+#define INFRA BIT(6)
+#define VDEC BIT(7)
+#define MP0_CPUTOP BIT(8)
+#define MP0_CPU0 BIT(9)
+#define MP0_CPU1 BIT(10)
+#define MP0_CPU2 BIT(11)
+#define MP0_CPU3 BIT(12)
+#define MCUSYS BIT(14)
+#define MP0_CPU4 BIT(15)
+#define MP0_CPU5 BIT(16)
+#define MP0_CPU6 BIT(17)
+#define MP0_CPU7 BIT(18)
+#define VEN BIT(21)
+
+/* === SPMC related registers */
+#define SPM_MCUSYS_PWR_CON MCUCFG_REG(0xd200)
+#define SPM_MP0_CPUTOP_PWR_CON MCUCFG_REG(0xd204)
+#define SPM_MP0_CPU0_PWR_CON MCUCFG_REG(0xd208)
+#define SPM_MP0_CPU1_PWR_CON MCUCFG_REG(0xd20c)
+#define SPM_MP0_CPU2_PWR_CON MCUCFG_REG(0xd210)
+#define SPM_MP0_CPU3_PWR_CON MCUCFG_REG(0xd214)
+#define SPM_MP0_CPU4_PWR_CON MCUCFG_REG(0xd218)
+#define SPM_MP0_CPU5_PWR_CON MCUCFG_REG(0xd21c)
+#define SPM_MP0_CPU6_PWR_CON MCUCFG_REG(0xd220)
+#define SPM_MP0_CPU7_PWR_CON MCUCFG_REG(0xd224)
+
+/* bit fields of SPM_*_PWR_CON */
+#define PWR_ON_ACK BIT(31)
+#define VPROC_EXT_OFF BIT(7)
+#define DORMANT_EN BIT(6)
+#define RESETPWRON_CONFIG BIT(5)
+#define PWR_CLK_DIS BIT(4)
+#define PWR_ON BIT(2)
+#define PWR_RST_B BIT(0)
+
+/**** per_cpu registers for SPM_MP0_CPU?_PWR_CON */
+static const struct per_cpu_reg SPM_CPU_PWR[] = {
+ { .cluster_addr = SPM_MP0_CPU0_PWR_CON, .cpu_stride = 2U }
+};
+
+/**** per_cluster registers for SPM_MP0_CPUTOP_PWR_CON */
+static const struct per_cpu_reg SPM_CLUSTER_PWR[] = {
+ { .cluster_addr = SPM_MP0_CPUTOP_PWR_CON, .cpu_stride = 0U }
+};
+
+/* === MCUCFG related registers */
+/* aa64naa32 */
+#define MCUCFG_MP0_CLUSTER_CFG5 MCUCFG_REG(0xc8e4)
+/* reset vectors */
+#define MCUCFG_MP0_CLUSTER_CFG8 MCUCFG_REG(0xc900)
+#define MCUCFG_MP0_CLUSTER_CFG10 MCUCFG_REG(0xc908)
+#define MCUCFG_MP0_CLUSTER_CFG12 MCUCFG_REG(0xc910)
+#define MCUCFG_MP0_CLUSTER_CFG14 MCUCFG_REG(0xc918)
+#define MCUCFG_MP0_CLUSTER_CFG16 MCUCFG_REG(0xc920)
+#define MCUCFG_MP0_CLUSTER_CFG18 MCUCFG_REG(0xc928)
+#define MCUCFG_MP0_CLUSTER_CFG20 MCUCFG_REG(0xc930)
+#define MCUCFG_MP0_CLUSTER_CFG22 MCUCFG_REG(0xc938)
+
+/* MCUSYS DREQ BIG VPROC ISO control */
+#define DREQ20_BIG_VPROC_ISO MCUCFG_REG(0xad8c)
+
+/**** per_cpu registers for MCUCFG_MP0_CLUSTER_CFG? */
+static const struct per_cpu_reg MCUCFG_BOOTADDR[] = {
+ { .cluster_addr = MCUCFG_MP0_CLUSTER_CFG8, .cpu_stride = 3U }
+};
+
+/**** per_cpu registers for MCUCFG_MP0_CLUSTER_CFG5 */
+static const struct per_cpu_reg MCUCFG_INITARCH[] = {
+ { .cluster_addr = MCUCFG_MP0_CLUSTER_CFG5, .cpu_stride = 0U }
+};
+
+#define MCUCFG_INITARCH_CPU_BIT(cpu) BIT(16U + cpu)
+/* === CPC control */
+#define MCUCFG_CPC_FLOW_CTRL_CFG MCUCFG_REG(0xa814)
+#define MCUCFG_CPC_SPMC_PWR_STATUS MCUCFG_REG(0xa840)
+
+/* bit fields of CPC_FLOW_CTRL_CFG */
+#define CPC_CTRL_ENABLE BIT(16)
+#define SSPM_CORE_PWR_ON_EN BIT(7) /* for cpu-hotplug */
+#define SSPM_ALL_PWR_CTRL_EN BIT(13) /* for cpu-hotplug */
+#define GIC_WAKEUP_IGNORE(cpu) BIT(21 + cpu)
+
+/* bit fields of CPC_SPMC_PWR_STATUS */
+#define CORE_SPMC_PWR_ON_ACK GENMASK(11, 0)
+
+/* === APB Module infracfg_ao */
+#define INFRA_TOPAXI_PROTECTEN INFRACFG_AO_REG(0x0220)
+#define INFRA_TOPAXI_PROTECTEN_STA0 INFRACFG_AO_REG(0x0224)
+#define INFRA_TOPAXI_PROTECTEN_STA1 INFRACFG_AO_REG(0x0228)
+#define INFRA_TOPAXI_PROTECTEN_SET INFRACFG_AO_REG(0x02a0)
+#define INFRA_TOPAXI_PROTECTEN_CLR INFRACFG_AO_REG(0x02a4)
+#define INFRA_TOPAXI_PROTECTEN_1 INFRACFG_AO_REG(0x0250)
+#define INFRA_TOPAXI_PROTECTEN_STA0_1 INFRACFG_AO_REG(0x0254)
+#define INFRA_TOPAXI_PROTECTEN_STA1_1 INFRACFG_AO_REG(0x0258)
+#define INFRA_TOPAXI_PROTECTEN_1_SET INFRACFG_AO_REG(0x02a8)
+#define INFRA_TOPAXI_PROTECTEN_1_CLR INFRACFG_AO_REG(0x02ac)
+
+/* bit fields of INFRA_TOPAXI_PROTECTEN */
+#define MP0_SPMC_PROT_STEP1_0_MASK BIT(12)
+#define MP0_SPMC_PROT_STEP1_1_MASK (BIT(26) | BIT(12))
+
+/* === SPARK */
+#define VOLTAGE_04 U(0x40)
+#define VOLTAGE_05 U(0x60)
+
+#define PTP3_CPU0_SPMC_SW_CFG MCUCFG_REG(0x200)
+#define CPU0_ILDO_CONTROL5 MCUCFG_REG(0x334)
+#define CPU0_ILDO_CONTROL8 MCUCFG_REG(0x340)
+
+/* bit fields of CPU0_ILDO_CONTROL5 */
+#define ILDO_RET_VOSEL GENMASK(7, 0)
+
+/* bit fields of PTP3_CPU_SPMC_SW_CFG */
+#define SW_SPARK_EN BIT(0)
+
+/* bit fields of CPU0_ILDO_CONTROL8 */
+#define ILDO_BYPASS_B BIT(0)
+
+static const struct per_cpu_reg MCUCFG_SPARK[] = {
+ { .cluster_addr = PTP3_CPU0_SPMC_SW_CFG, .cpu_stride = 11U }
+};
+
+static const struct per_cpu_reg ILDO_CONTROL5[] = {
+ { .cluster_addr = CPU0_ILDO_CONTROL5, .cpu_stride = 11U }
+};
+
+static const struct per_cpu_reg ILDO_CONTROL8[] = {
+ { .cluster_addr = CPU0_ILDO_CONTROL8, .cpu_stride = 11U }
+};
+
+#endif /* MTSPMC_PRIVATE_H */